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VulnerabilityPublished Updated

CVE-2025-34449: Genymobile scrcpy · Deserialization of Untrusted Data

Affects Genymobile scrcpySource CVE Database V5

0

Not known to be exploited · CVSS 6.9 Medium : upgrade to 3.3.4 when convenient.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 4.0 base score
6.9Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 36% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.3.4
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade genymobile/scrcpy to 3.3.4.

Affected software

ProductAffectedFixed in
GitHubgenymobile/scrcpypkg:github/genymobile/scrcpyOther threatsAffected
  • <3.3.4
Fixed in
  • 3.3.4

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

To mitigate CVE-2025-34449, organizations should: 1) Immediately restrict the use of scrcpy to trusted devices only, enforcing strict device authentication and connection policies to prevent untrusted or compromised devices from connecting. 3) Consider isolating scrcpy usage to dedicated, hardened environments or virtual machines to contain potential exploitation impact. 4) Implement host-level security controls such as application whitelisting, memory protection mechanisms (e.g., ASLR, DEP), and runtime exploit mitigations to reduce the risk of successful memory corruption exploitation. 5) Educate developers and IT staff about the risks of connecting untrusted devices and enforce physical security controls to prevent unauthorized device connections. 6) If immediate patching is not possible, consider alternative tools for Android device control that do not exhibit this vulnerability. 7) Conduct regular security assessments and monitoring to detect anomalous behavior indicative of exploitation attempts. These targeted steps go beyond generic advice by focusing on device trust, environment isolation, and proactive monitoring specific to the nature of this vulnerability.

Description

Genymobile/scrcpy versions up to and including 3.3.3, prior to commit 3e40b24, contain a buffer overflow vulnerability in the sc_device_msg_deserialize() function. A compromised device can send crafted messages that cause out-of-bounds reads, which may result in memory corruption or a denial-of-service condition. This vulnerability may allow further exploitation on the host system.

References

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